I would agree with the Reference 3a MM Decapo monitors. I own them and drive them with a 3.5 watt/ch. 2A3 amp and have even driven them with a 1.5 watt/ch. '45 amp.
The Decapo is rated at 92 db/8 ohm but is a very simple and easy to drive crossover. With my 3.5 watts, it can get "way too loud". Also, the Decapo has excellent bass for its size. I have not heard many monitors that had sufficent bass for large scale classical, but I feel the Decapo does justice to the genre.
BTW, my pair are the non "i" version and they sound great. The non "i" version sell for about $1000-$1200 used and the "i" version seem to be about $300-500 more for a used pair. I don't feel any need to spend the extra bucks for an upgrade.
In your original post you mentioned that your current speakers are "wall mounted". Will you be doing the same with the new speakers? If so, the Decapos are not a good match as they are rear ported and need some room behind them. If you will be placing them on/near the wall, you might want to consider the Carolina Audio speakers or a speaker made specifically for that application.
Enjoy,
TIC